Table 5: Weight coefficient and score of evaluation index.

Score 1st index Weight Score 2nd index Weight Score
58.921 characteristics of 3D geomat 0.217 72.760 Soil Nails Spacing (m)
Thickness of the geomat (mm)
Tensile strength of geomat (KN/m)
0.234
0.077
0.689
60.358
50.000
79.515
The characteristics of soil 0.147 47.953 Cohesion of soil ( kPa )
Internal friction angle (°)
Bulk density (KN/m3)
Permeability coefficient (cm/s)
Compactness (%)
Ratio of pore pressure
0.100
0.039
0.458
0.312
0.056
0.035
62.805
46.567
31.585
64.472
80.875
21.318
The characteristics of slope 0.353 48.653 Slope angel (°)
Slope length (m)
Lithology
0.578
0.309
0.113
65.413
24.125
30.000
The characteristics of vegetation 0.138 64.332 Vegetation coverage (%)
Root development
Planting suitability
0.392
0.406
0.202
55.410
70.000
70.254
The characteristics of rainfall 0.078 77.100 Rainfall intensity (mm/h)
Rainfall duration (d)
Daily rainfall capacity (d)
0.582
0.256
0.162
73.877
78.882
85.862
Construction and maintenance 0.048 61.440 Construction technique
Maintenance condition
Maintenance time (d)
0.572
0.286
0.142
70.000
50.000
50.000
Environment 0.019 56.177 Temperature (°C)
Humidity(%)
PH value
0.324
0.126
0.550
51.198
71.198
55.669